3-((5-Acetylamino-4-((2-bromo-4,6-dinitrophenyl)azo)-2-methoxyphenyl)(2-hydroxyethyl)amino)propanoic acid, ethyl ester 67923-49-3 EINECS 267-765-2 Ethyl N-(5-(acetylamino)-4-((2-bromo-4,6-dinitrophenyl)azo)-2-methoxyphenyl)-N-(2-hydroxyethyl)-beta-alaninate beta-Alanine, N-(5-(acetylamino)-4-((2-bromo-4,6-dinitrophenyl)azo)-2-methoxyphenyl)-N-(2-hydroxyethyl)-, ethyl ester